Getscreen.me vs Slack: Which is best for you?

I've used GetScreen.me a LOT to assist family and friends configure things or fix things on their computers or run updates for them -- including most recently to fix a problem my wife was having with her laptop camera while travelling (which stopped working after a Windows update, surprise, surprise).

They have removed this product from Appsumo which means we cannot upgrade this to diff level anymore.

It allows for sharing of documents, links, doing a hurdle, and screen sharing and all those other essential things important in a semi professional environment.

I hate it when I receive a call and I don't have my earphones connected. If I answer the call directly, I find that many times the earphones are not recognized, and usually I need to restart Slack to make my earphones recognizable. When you have an important call, that sucks.